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| author | James Bottomley <James.Bottomley@suse.de> | 2011-05-18 16:20:10 +0200 |
|---|---|---|
| committer | Andi Kleen <ak@linux.intel.com> | 2011-08-01 13:54:50 -0700 |
| commit | 0871ccb857a76c76be1e4c8b3d1dfdd7f3e91fe7 (patch) | |
| tree | 398135b9950ff54cad9d09e093d1d0e8f8569f28 /fs/jbd/commit.c | |
| parent | 4ede8259d84a843e2adc0ce69523015608a5f271 (diff) | |
block: add proper state guards to __elv_next_request
commit 0a58e077eb600d1efd7e54ad9926a75a39d7f8ae upstream.
blk_cleanup_queue() calls elevator_exit() and after this, we can't
touch the elevator without oopsing. __elv_next_request() must check
for this state because in the refcounted queue model, we can still
call it after blk_cleanup_queue() has been called.
This was reported as causing an oops attributable to scsi.
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Diffstat (limited to 'fs/jbd/commit.c')
0 files changed, 0 insertions, 0 deletions